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Any internal adjustments? I have heard about adjusting and shimming a pressure valve for harder shifts but I cant find any definitive details.

Yes, there is 2 Internal Adjustment you can do. I will be go into more details below...

Quote:

Originally Posted by ault786

What are the reasons you picked Dinan over Ess trans. tuning? No, Trans Tune for the GM Transmission.
Was your trans slipping? No, but the rubber band effect causing my trans to heat up and wear more parts then should be. Will cause the Trans to fail at a future date.
I'm considering doing the same thing.
Can you give us an update please.
Thanks

It's well worth the upgrade. I will be doing a few more things to make it more effective but until then. I won't release it to the public.

Here is how the EGS unit looks like opened up

Here is the settings that can be adj on the unit

When going up in pressure on the TQ it is only for 4th and 5th gear(mostly). You do feel it shift alittle crisper 2-3 but not that noticeable.

I'm liking this thread! Just bought a ZHP (GM) auto - would prefer a manual, but when you're on a budget beggars can't be choosers.
Nevertheless, I'm probably going to like it while stuck in Bay traffic...

So could you tell us more about your stage 3 plan? 3. IPT 5L40-E Modified Valve Body (High Priority)
Reduce or Eliminate the Shift Overlap

How's this work exactly? Is this decreasing the time taken transferring drive from one gearset to the next? I'd like the idea of this as I find the time taken between shifts to be a little excessive, even when shifting myself.

youŽd better get yourself a ZF6HP21. you wonŽt be able to get much shorter shift time, it depends on the oilflow.

That is correct but with the modded VB it will cure this Issue. My car is about to be on JackStand for another 1-2 months for a Revamp and Redesign on some of my parts...(redoing the 3" exhaust to quiet it down with electronic cutouts)